Doonesbury by Garry Trudeau for October 16, 2012
Mark: It's like every day I open up the Times and there's another gay couple getting married! I can't stand it! What about me? If I don't meet someone soon, it'll be too late! My biological clock will run out! Mike: Your biological clock? Mark: Yes! Mike: You're worried that you'll be barren? Mark: No, dead! I'll be dead!